This drone can charge straight from the power lines. A prototype built by students in Denmark. https://www.facebook.com/reel/2827561450966396/?mibextid=9drbnH
Archive for the ‘rechargeable’ Category:
2024-10-19 Recycling Lead Acid Batteries From UPSes
A short video that says they won’t go to the landfill. https://www.facebook.com/reel/1199773171098373?mibextid=9drbnH&s=yWDuG2&fs=e
2024-09-23 CATL Guarantees 1 Million km EV Battery
Sam Electric Viking’s 10.7 min video tells about CATL’s 600 thousand mile battery.
2024-05-11 New Capacitor With 19 Times Power Density Could Help EV Batteries Last Longer
It looks like this supercapacitor could quickly charge and discharge, thus reducing the cycles on the EV battery. https://www.livescience.com/technology/electronics/ev-batteries-could-last-much-longer-thanks-to-new-capacitor-with-19-times-power-density-that-scientists-created-by-mistake
2022-03-15 Calif Solar Is A Battery Market
California’s Solar market is a battery market. Interesting article. It says that battery storage is to be used as long term storage. https://www.pv-magazine.com/2022/03/14/californias-solar-market-is-now-a-battery-market/
2022-01-03 Periscopes Replaced By Video Cameras
I’m sitting on the grass in the back yard and it’s chilly, but the sunlight feels really good on my back. I can hear some birds up in the trees, I’m waiting to see if they’ll come down and eat some birdseed. I started thinking about a way to watch them up there. What I
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2020-11-17 Tesla Batteries And Supply Constraints
The manufacturing of Electric Vehicles and grid scale storage are constrained by the amounts of batteries that can be supplied by the battery makers around the world. The early Tesla EVs used the ubiquitous 18650 lithium ion cells, something like 6000 per vehicle. In order to reduce costs and weight Tesla went to the larger
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2020-10-07 Tesla Plans On Mass Production Of Li-Ion Cells
@prerunn Said, “… battery cell production isn’t large enough…” The li-Ion cell production is being scaled up to be mass produced in the gigafactories that Tesla is building right now. The cell production lines are being optimized for maximum production at minimum costs. All of the cells Tesla makes will be used in their products
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2015-11-28 Recharging From Used Alkalines
I have often seen schematics of Joule Thief chargers for use in charging Ni-MH rechargeables from used alkaline cells. The idea is to boost the voltage of the used alkaline cell up to high enough to get current the flow into the Ni-MH cell. One setback is that conventional JTs are only 50% efficient, so
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2015-02-06 Ravpower Power Bank Charger
I ordered five of the Ravpower RP-PB08 portable chargers and after I got them and showed them to my friends, they suddenly remarked that they needed one of them. So my five have suddenly dwindled to just a few left and those may disappear, too. These are rated at 3200 mAh. That’s just a bit
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